Concrete-block mold



w. H. PATTERSON CONCRETE BLOCK MOLD Nov. 17, 1925.

Original Filed April 9. 192

IN V EN TOR f a. A TT ORNE Y.

Patented Nov. 17, 1925.

UNITED STATES 1,562,044 PATENT OFFICE.

WILLIAM H. PATTERSON, F GUYAHOGA FALLS, OHIO, ASSIGNOR 0F ONE-HALF TO WILLIAM OCONNOR, OF CUYAHOGA FALLS, OHIO.

CONCRETE-BLOCK MOLD.

Application filed April 9, 1924, Serial No. 705,243. Renewed June 11, 1925.

To all whom it may concern:

Be it known that I, IVILLL-irr H. PA'r'rnnsoN, a citizen of the United States, residing at Ouyahoga Falls,in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Concrete-Block Molds, of which the following is a specification.

This invention relates to improvements in concrete block molds having for an object to provide. a simple and comparatively inexpensive structure which may be easily operated by the average worker.

Another and important object is to pro- 155 vide a structure whlch will mold blocks having horizontal and vertical webs which upon assembling a set of these blocks provide vertical and horizontal air-ways whereby an absolutely dry structure is obtainable.

A further object is to provide a mold of this character in which the ingots are carried by vertical side and end plates which are hinged to the base of themold and -may be swung outwardlyto allow removal of a completed block. I

Other objects will be in part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by persons skilled in the art, I have in the accompanying illustrative drawings, and in the following detailed description based thereon set out one possible embodiment of the same.

Fig. 1 is a side elevation of a mold in operation, a portion of one side wall being broken away and the ingots being shown in dotted lines;

Fig. 2 is an end elevation;

Fig. 3 is a detail view showing the rela tion between the base plate, pallet and lower ingot;

Fig. 1 is a perspective view of one of the blocks formed by this mold and Fig. 5 is a vertical longitudinal sectional view of this block.

Having more particular reference to the drawings throughout which similar characters or reference designate similar parts this improved concrete block mold may be stated as comprising a base portion 6, which obviously may be if desired, supported upon a set of legs 7, and provided with a removable base pl-ate 8 which supports the pallet and the members disposing there above. As

illustrated in Figure 2, this base portion 6 removably supports at one side a face plate, 9 which carries a pair of depending dowel pins 10 snugly fitted within sockets 11 carried by said base. This'construction permits of changing the face plates and consequently gllows for variance of the design of the block ace.

On the opposite side is'hinge'd a side plate 12 which obviously has a plain inner face and serves as a means for retaining the con' crete which is poured into the mold. Each end plate 13 is hinged to the base as indicated and carries upon its inner *face an ingot 14 whose inner face is arranged in parallel relation with respect to the end wall at the midway point, from which point the said face tapers upwardly and outwardly. The upper end portions of these ingots are adapted to snugly engage with an ingot 15 carried by a removable top or cover plate 16, this cover plate being movable vertically by means of a lever 17 or the like. Mid-way the length of the ingot carried by the top plate, a recess or notch 18 is formed and is adapted. to co-act with a similar recess or notch 19 formed in a lower ingot 20 to provide a vertical central transverse web or rib 21 in the block structure. A horizontal web or rib 22 is formed in the block through spacing apart the upper and lower ingots as shown in Figure 1. I p I As is apparent in Figures 1 and 1 a substantially cross-shaped web or rib connec tion is provided between the inner and outer faces of each block. These webs being terminated at points spaced inwardly from the ends and upper and lower edges of the block, so as to provide the heretofore mentioned vertical and horizontal air-ways when the blocks are assembled in a structure.

In Figure 3 the manner of supporting the lower ingot 20, is clearly shown and consists of positioning the ingot upon a lower or base plate 8, and then slipping the pallet 23 into position. The side and end walls are then. moved upwardly into the position shown in Figures 1 and 2, after which the concrete is poured into the mold. The top plate 16 is then moved into position carrying with it the ingot 15 and through this operation compresses the concrete and forms a solid block. After the concrete has set the top plate is removed, and the side and end plates or walls are swung outwardly and downwardly out of engagement with the block. At this point the block may be lifted clear'ot the entire structure including the lower ingot 20 through moving the pallet 23 v rtically. After this operation the original steps may be taken to construct another block.

It is understood that suitable clamps or angle brackets may be employed to secure the side and end walls in position during the block molding process.

Certain changes in the minor details of construction may be resorted to and such changes as fall within the scope oi the appended claims I consider within the spirit of my invention.

I claim:

1. A mold of the character described comprising a base aseparable vertical face plate arranged at one side of the base, side and end walls hinged to the base, ingots formed upon the inner faces of the end walls, an up standing ingot removably arranged upon the base and having a central transverse recess, an ingot disposed above the upstanding ingot and having a central transverse recess to co-act with the first recess to form a vertical web in a block and said ingots being vertically spaced whereby to form a horizontal web in a block.

2. A mold of the character described comprising a base, a pallet arranged upon the base and having a central downwardly di verging opening, an upwardly converging ingot having its lower endseated in said opening, said ingot havin a central trans verse recess in its upper face, a detachable face plate disposed at one side of the base, side and end walls hinged to the base, ingots carried by the end Walls and shaped to snugly engage the upstanding ingot, a top plate, and a depending ingot carried by the top plate and converging downwardly, said depending ingot having a central transverse recess to co-act with the first named recess to form a vertical web in a block, said upstanding and depending ingots being. spaced apart to form a horizontal web in a block.

In testimony whereof,I affix my signature.

lVILLIAM H. PATTERSON. 

